<template>
  <div class="login-container">

    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
      auto-complete="on"
      label-position="left"
    >

      <!-- 放置标题图片 @是设置的别名-->
      <div class="title-container">
        <h3 class="title">
          <img
            src="@/assets/common/login-logo.png"
            alt=""
          >
        </h3>
      </div>

      <el-form-item prop="mobile">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.mobile"
          placeholder="Username"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="Password"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span
          class="show-pwd"
          @click="showPwd"
        >
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-button
        :loading="loading"
        type="primary"
        style="width:100%;margin-bottom:30px;"
        @click.native.prevent="handleLogin"
      >Login</el-button>

      <div class="tips">
        <span style="margin-right:20px;">账号: 13800000002</span>
        <span> 密码: 123456</span>
        <span> token: {{ token }}</span>
      </div>

    </el-form>
  </div>
</template>

<script>
import { validMobile, validPassword } from '@/utils/validate.js'
import { mapGetters } from 'vuex'
export default {
  name: 'Login',
  data () {
    // 2、函数校验
    // const validMobile = (rlue, value, callback) => {
    //   const mobilePattern = /^1[3-9]\d{9}$/
    //   if (mobilePattern.test(value)) {
    //     return callback()
    //   } else {
    //     return callback(new Error('请输入正确的手机号'))
    //   }
    // }
    // const validPassword = (rule, value, callback) => {
    //   if (value.length > 6 && value.length < 16) {
    //     return callback()
    //   } else {
    //     return callback(new Error('请输入6-16位密码！！！'))
    //   }
    // }
    // 3、封装校验
    const validatorMobile = (rlue, value, callback) => {
      if (validMobile(value)) {
        return callback()
      } else {
        return callback(new Error('请输入正确的手机号'))
      }
    }
    const validatorPassword = (rule, value, callback) => {
      if (validPassword(value)) {
        return callback()
      } else {
        return callback(new Error('请输入6-16位密码！！！'))
      }
    }
    return {
      loginForm: {
        mobile: '13800000002',
        password: '123456'
      },
      loginRules: {
        // 1、基本校验
        // mobile: [
        //   { required: true, message: '手机号不能为空', trigger: 'blur' },
        //   { pattern: /^1[3-9]\d{9}$/, message: '请输入正确的手机号', trigger: 'blur' }
        // ],
        // password: [
        //   { required: true, message: '密码不能为空', trigger: 'blur' },
        //   { min: 6, max: 16, message: '密码长度在6-16', trigger: 'blur' }
        // ]
        // 2、函数校验
        // mobile: [
        //   { required: true, message: '手机号不能为空', trigger: 'blur' },
        //   { validator: validMobile, trigger: 'blur' }
        // ],
        // password: [
        //   { required: true, message: '密码不能为空', trigger: 'blur' },
        //   { validator: validPassword, trigger: 'blur' }
        // ]
        // 3、封装插件验证
        mobile: [
          { required: true, message: '手机号不能为空', trigger: 'blur' },
          { validator: validatorMobile, trigger: 'blur' }
        ],
        password: [
          { required: true, message: '密码不能为空', trigger: 'blur' },
          { validator: validatorPassword, trigger: 'blur' }
        ]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  computed: {
    ...mapGetters(['token'])
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd () {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    async handleLogin () {
      // 点击登录时触发actions登录请求，如果需要跳转，则需要等待actions异步结果
      await this.$store.dispatch('user/login', this.loginForm)
      this.$message.success('登录成功')
      // 跳转到首页
      setTimeout(() => {
        this.$router.push(this.redirect || '/')
      }, 500)
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  background-image: url("~@/assets/common/login.jpg"); // 设置背景图片
  background-position: center; // 将图片位置设置为充满整个屏幕
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #68b0fe;
.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }
  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.7); // 输入登录表单的背景色
    border-radius: 5px;
    color: #454545;
  }
  .el-form-item__error {
    color: #fff;
  }
  .loginBtn {
    background: #407ffe;
    height: 64px;
    line-height: 32px;
    font-size: 24px;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
